the scene. so far no one has claimed responsibility for the attack. a lot more coverage ahead. and we want to give you some phone numbers. the boston mayor's hotline for people looking for their loved ones is 617-635-4500. and the boston crimes tips hotline is 800-494-tips. that does it for this edition of "360." tonight, our thoughts and prayers are with the victims of this tragedy here in boston and with their families. ♪ good evening, everyone. we begin with breaking news on the terror attack in boston. three people are dead, including an 8-year-old child. a little boy. at least 144 have been injured. that's the latest we know at this moment. many of them with shrapnel

wounds, things like ball bearings in the bombs. 17 in critical condition, 25 in serious and at least 8 are children. and one of the confirmed dead tonight is an 8-year-old boy. the fbi is leading the investigation. federal law enforcement has been placed in a level one mobilization, which basically means all hands on deck. up in boston, they're now working 24 hours a day, all days off and have been canceled at this point. the first explosion went off around 2:50 eastern standard time near the finish line of the boston marathon. the video from "the boston globe" captured the explosion as it happened. [ explosion ] [ second explosion ]

>> the second explosion went off 12 seconds after the first one. severely injuring innocent bystanders. runners, some were knocked off their feet. thousands of spectators started to run for safety. and there were many who turned and ran back towards the explosion to help the injured. the severity was immediate apparent to law enforcement at the scene. we wanted to play for you the radio traffic among the boston police department in just the few moments after the attack.

>> president obama addressed the nation earlier tonight and promised the full resources of the federal government. the fbi is now formally in charge. >> we still do not know who did this or why, and people shouldn't jump to conclusions before we have all the facts. but make no mistake, we will get to the bottom of this, and we will find out who did this, we'll find out why they did this. any responsible individuals, any responsible groups will feel the full weight of justice.

>> the full weight of justice. federal, state and local authorities are searching the city for answers. so far no suspects have been formally identified. but a law enforcement source sells cnn they have a number of quote unquote active leads. that's the term they're using right now. the crime scene, which covers several city blocks, has been locked down by the national guard. the atf has sent their explosives team from new york and the fbi is asking anyone with information about the attacks to contact their tip line. our chris cuomo is joining us from boston. chris, what is the scene like there tonight? >> it is a very tough time up here right now, erin. it's six square blocks around the blast zone has been cordoned off. the boston cops are still here on the scene. the national guard is here. various federal agencies and vehicles walking around. when you walk around the scene, it is ghostown where the explosion happened. people who live there have to stay largely locked up in their homes for right now.

you see abandoned strollers, all types of bags. lots of sneakers, signs of how people just dropped everything and ran when this happened. when you talk to people in the area watching from the roofs, they said when they heard the explosion, they thought it was about patriot day, about that four-hour mark into the marathon. but we learned it was something much worse. >> throughout the day, there's been so many conflicting reports of how many devices there were. what are -- is the latest that you've been able to find out ant that? >> we have the latest information. and also in to why it was so difficult. when they found out what types of ordinance this was, small packages, light explosives, black explosives as opposed to high explosives, they had to start looking at every type of package like that. throughout the day, there was reporting about potential devices that wound up being cleared. that gave authorities a very good look at what type of

sophistication was here. so again, the bombs were placed low on the ground, small devices, relatively weak. what does that mean? high explosives wasn't used here. they believe this was a black powder bomb, maybe two of them. they say they know how they were detonated. they're not releasing that information, because it will help them figure out how this was done. high explosive, 20,000 feet per second it flies out. black powder bombs, 7,000 feet per second. ball bearings were in both of these bombs they believe. at 7,000 feet per second. a bullet out of a 9 millimeter hand gun is going at 1,000 feet per second. so when i walked the area a lock away, there were pock marks in buildings and vehicles from

being hit with ball bearings. throughout the day, they found other packages that fit the description. all these packages were cleared. right now, the crime scene is still in the early scene of the investigation, because they're still searching all of these packages. they believe, erin, that at this point they could suggest the theory of still one person involved. that they don't know that this was coordinated in terms of a team. it could have been coordinated in terms of different steps. but that's the latest we have right now. now, a big point that we're making as we go through this, the crime scene right now early. why? they have a lot of searching to do, so we'll pick up with the investigation right now. brian todd is with me. good to have you here. got to talk to the police commissioner. what was the latest in terms of how this happened? >> there were at least two devices, possibly a third. that's what they know right now.

they are monitoring surveillance cameras in the area, trying to pick up whatever surveillance was there. they know there were a lot of surveillance cameras in that general area of the city. they're working to compile what was gathered. looking at the fbi, trying to get any media outlet footage of the end of the race. a lot of cameras around filming the end of the raise. they're working with the fbi to compile that evidence, as well. so some of that may be coming out. maybe releasing some of it, we're not sure. but that will tell them a lot between the surveillance camera and the media outlet cameras of what happened, the se quequence the bombs, how they went off. >> the last point, very interesting. what do they think they can figure out from cell phone tower data? >> they're going to be looking

at everything. they might have shut down some ave set off some of the devices. but that will help them try an late who was around, that plus the media +gzeoutlets and secu xaround. one1ñ of those tv crews likely w someone around here. z that's kñ to be see key. >> they'recçqj defining promis what they're able to learn. >> that's right. some of what you were saying is correct. hearing that it was%3uh a crude device, not ñfráur(páed, but ball bearings were being picked out some of the;[3ó wounds. we see the commissioner talk to us, the injuries range from cuts to amputations. again, some of that could be used as potential evidence when they pickuó outñ"ig some of th bearings, some of the other

shrapnel that was used toi-ñ fie out what was going on. >> brian, i appreciate it. thank you very much. erin, back to you. the point that brian just made about these injuries, three lives were lost, but so many people fighting for their lives tonight. this is far from over for them. there have been so many [ frightening stories from eye witnesses that described the deafening blast, the shattering glass and what they saw happen earlier i spoke to one mother who was closing in on the finish line. she was&ñ5óx running. her husband and two children were watching her get ready to off. i asked her how she barely escaped injury. >> angel on my shoulder or whatever you wanted to call it. i had been running on the left, slapping people's hands and knew

my family was in they bleachers on the right. fqy i moved over so my daughter could see me. ) rp(pened right to my left, ani immediately looked over and saw the runners down andol just sm and people up against the fences and just horrific, horrific scene. >> what did you think when that happened? were you just inxç shock? did you think this was an attack? what went through your mind? >> 9r?!honestly, for somebody had just run for four hours, i didn't know anything. d trying to get my about =zrñme. trying to get my what's many my head is the official that was to my left. he was facing that direction and it was justeo4 rj horrific loo í÷ face. i immediately turned at that point after hearing that blast and saw it, and then the second one happened and then i immediately thought of my family. so i think just disbelief, like what just happened? >> did you see people, injured

people? >> it was immediate, because there was so much glass and so much -- it was so explosive. i don't know how elsed there were people up against the fence and blood everywhere, and glass and something out of a war zone. i can't say it any differently. lookd for your family. were you able to find them in the stands? i know they're okay and you're all there tonight in the hotel room together, but were you able to find them? >> i was. thankfully my husband is about 6'4" and 240 and he had one daughter under each arm. he was easy to spot in a crowd. at that point, i think we all, after the second blast went off, we thought collectively right there at the finish, what else could be happening? would the bleachers go up next? could there be another chain reaction of explosions? i can't say enough about the

boston police. they were right on the scene. they went straight over to help, as well as race officials. just volunteers. so many people to help. they just corralled us through as runners to try to get us out of there. so just so many helpers. >> demi, what was the reaction of mazy and willa, your daughters? they're 9 and 7. did they understand? this is one of the event that is will change your life and probably theirs, too. >> absolutely. my husband is with them right now, and they just want to go to bed. i think they're exhausted emotionally,mentally. my daughters were just in tears. we were all crying. i heard the other account of just reuniting with families and being in tears and that's how we were. and just having this heartbreak for the families of injured people or worse, because those were all supporters of someone behind me that was running. and that could have been us. and it's just heartbreaking.

>> demi, what's next for you? you're there tonight obviously, and they've made it clear you're not supposed to leave the hotel room, just stay with your family inside? >> right, and happy to do that right now, again, make our kids feel better. they're the most important to us. we fly home tomorrow night. so back to the charlotte area and back to our friends and family. so just looking forward to taking care of our kids. >> and now i want to bring in elizabeth cohen. i know you have the story of two nurses who were really the first on the scene that ran in to help the injured. obviously chris is going to be joined by them, but what was their story? >> these two men are both nurses with decades of experience. they said nothing prepared them in many ways for what they saw. they were in the tent near the finish line when they heard the

explosions. one of them has served in iraq. he said when he ran out there to help, it looked like iraq. they saw people with limbs blown off, they saw people whose abdomens were opened. they rushed these people into the tent. they said that everyone worked so well together. all the positions and all the nurses, they worked on dozens of patients trying to get them into ambulances and out to local emergency rooms. >> chris? >> thank you very much. i'm here talking with steven and jim. you're there, you were there to help the elite athletes, thinking you're going to deal with cramps and dehydration. what happened, steven? >> the first thing we heard was the explosion, then we felt the concussion in the room. then several of us went running towards the front door. then we heard the second explosion, and then two or three of us kept going. and then the group kept going back, waiting for the casualties. so half of us went forward to

the wounded and half stayed back. >> jim, what do you see when you get to the casualties? >> lots of smoke and confusion, lots of blood. lots of injured patients. for me, it was just a flashback to iraq. carrying that first explosion, i knew it was an ied. usually they come in twos, sometimes threes. sometimes they wait for people to come out and they set off the third one or the second one. there were two. they stopped the third one, thankfully. and we had to make room in the medical tent from the athletes, the marathoners, to move forward to make room for the injured people. >> we haven't been showing them on tv, but i've seen pictures from the injuries and they are horrific. the death toll at three right now, well over 100 injuries. what was being done at the scene that helped stabilize people?

>> we had full trauma staff, we had physicians and nurses, emts, and it was a full level one trauma experience. we had triage, we had stabilizing of wounds. transporting to level one trauma centers. it was the best response that i've seen. >> how did you get set up so fast? >> it can't be -- you can't thank ems enough. the mass casualty scenario went into full effect, and it went like clock work. >> people just did what they had to do, using what resources they had. we didn't have a lot to do it, with what we had. we just made the best of a bad situation. r >> you saw a man, woman and child dead? >> yes, yes. i treated both a double amputee, a young child and a young woman and a cardiac arrest.

i think the best scenario was that everyone turned from a, you know, this is a marathon, we're going to treat cramps and dehydration, from that to all of a sudden everyone who had trauma experience came to the front, everyone who didn't went to the back and let us do our experience and we did trauma care and moved everyone we could to the trauma centers. >> how long do you think you were there triaging? >> for at least half an hour, 45 minutes, longer than that, i'm sure. >> how many people do you think came through? >> i personally touched 25 people, and there's at least twice that in hospitals. >> what were you thinking as you were seeing this volume of injuries? >> me, it was just like going back to being in iraq in 2006, 2007. >> they looked like war injuries because of the shrapnel?

>> absolutely. people were screaming, trying to get in touch with their loved ones. we did what we had to do. they were responding. >> what do you know about the kids? >> i don't know much about the kids other than what i've seen. i didn't see any children coming through the tents. >> i dealt with two children. one young child and his father came through the system. and we got them on ambulances, went to children's and mass general. the younger child who was injured, i'm not sure what happened to him. as far as i know, he expired. >> when you were dealing with these people, did you think they were going to make it? thank god the death toll is low at three, but we have dozens more. >> we always hope the death toll is low and we treat them as such. everyone who we treat in a mass casualty, we assume they're going to survive.

you know, the one woman who we worked on extensively, eventually we all came to the conclusion that she was -- other than that, everyone was treated very aggressively. >> how many of you were treating these waves of people that you were finding? >> everybody came together as a group. >> as a group, it was phenomenal. there were 25 physicians and at least 40 nurses. >> there were even people nonmedical that were, what can i do to help? >> what are the chances that you would have an immediate response in such a random situation? >> except for this event, probably nil. >> but at a marathon, you're not thinking trauma or triage. >> most of us come from an icu or trauma background. so it took us a while to switch. but once we switched gears, we were in trauma mode.

>> steven, jim, thank god you're okay. thank god you were there and you did what you did. to have these types of injuries and to hear so little about people losing their lives is amazing. >> we were lucky today. hopefully this doesn't happen anywhere else. >> and let's hope the people who were injured make it through. thank you so much. thank you for being here with us. erin, back to you. >> thank you very much to chris. let's bring in dr. sanjay gupta. sanjay, what do you make of the story they were just telling chris, the kinds of injuries that they saw? >> these are unusual injuries in a civilian setting. but you heard from one of the nurses that said he had spent some time in iraq and had that experience which probably helped him. when you're in a sitting like this, you're expecting one type of patient, possibly patients dehydrated, maybe somebody who

has cardiac problems. but this is a completely different scenario. what it was bolstered by is you had a lot of ambulances and ems there who do have supplies, but also the ability to take the most critically wounded out of there as quickly as possible. so it was a combination of things. >> just hearing what happened that moment by moment. sanjay, one of the surgeons at massachusetts general, which is where i believe 29 people are, 8 in critical condition tonight, we don't know if they're all going to make it. we're hoping they are, but it's minute by minute. the trauma surgeon said several patients will require serial operations over the coming days. some of these people have gone through amputations already. what does that mean, serial operations? >> this is somewhat tough to talk about, erin. but what they are usually referring to is when you think about these types of injuries, you think about injuries to the bone, to the soft tissue and to the blood vessels.

sometimes it requires operations to sort of allow some of the issue that has been injured here to heal a little bit so it doesn't get infected. it may require taking away some of the dead tissue, and that is what in part he is referring to when it comes to lower extremity operations. >> you talked about how the bombs must have been placed very low and why the injuries are so low to the body. but some people may think it would be the force of the blast. what is your sense of that? >> you know, it's interesting. and also i noticed there were people who were very close to the blast site, you saw right that were able to run away from there. so it tended to be low and focused, as well. and it wasn't in multiple

directions. i don't know somewhat to make of that. if that speaks to the magnitude in terms of not being a strong bomb or it was just more crudely made. you think about these explosions and you worry about things coming up and out, out of an explosion, and people are told it hit the deck and closer to the ground. but in this case, so much of that force was low to the ground. and you saw the runners as they were running through there, did not seem to be blown back too much. one man probably stumbled and fell. but i'm not quite sure if that was by design or that's the way the explosion sort of turned out. >> sanjay, thank you very much. dr. sanjay gupta. more on our breaking news coverage from boston still to come. you'll hear from president obama and we'll talk to former experts from the joint terrorism task force and the fbi. we'll be right back. ur chance t. with centurylink as your trusted technology partner,

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as investigators continue to gather evidence, question witnesses and examine surveillance video, of which we understand there was a lot, from television news crews and cc-tv that would have been in that part of boston, there are still so many unanswered questioned tonight. i want to bring in my guests tonight. don, the joint terrorism task force is tonight saying to say that we're engaged is an understatement. so what is the latest you're hearing from people there? >> as i understand, there's multiple tracking of investigation going on right now. typically in these things, you heard in the last segment the medical folks talking about triage. no doubt they're getting hundreds of leads in from surveillance video, from concerned citizens, from informants.

that information comes flooding back in, and then you have to make sense of it, what's real, what's not. so there's a lot of investigative avenues going on right now. in addition, you have the two devices that exploded. there's a lot of forensic evidence available as the bomb technicians piece those together and try to figure out what did they look like, where were they placed, how did these devices react. in addition, reporting talks about some unexploded devices that were rendered safe that could be of huge evidentiary value to investigators. they could contain trace evidence, dna, fingerprints, so a lot of information is being sifted through. >> tom, how much information do you think they have right now? i think back to the last attack, when you think about benghazi, but it turned out they had a lot of information that came in from

intercepted phone calls and they didn't release all that right away. do you think at this point they're not sure but are a lot further along than perhaps it might seen? >> i would doubt that. i think in this case the problem is the amount of information coming in. you have tens of thousands of people on their cell phone, sending pictures of their loved ones crossing the finish line, all of that, that would be going on. with the number of runners at a large event like that, the airwaves would be flooded. i know they're going to be looking at specific traffic through the closest cell phone towers near the venue, but still an avalanche of information for them to sort out. >> so a case of too much information. >> that's right. >> early on, sure, there's going to be a flood. that's where a lot of analysts

will be really valuable in trying to sift through what's important and what's not and trying to correlate that information. >> in terms of information that we have, they said they're looking for someone, darker skinned or black male. this is what they put out, possible foreign accent, black backpack and sweatshirt. we reported there's a saudi national under guard but he's not in custody. but we're not clear why he's under guard. what do you make of those things? >> it's difficult. the investigators, the spokespersons for the jttf don't want to tip their hand. there is obviously some investigative interest involved in some of these people. but it would be too early to really opine on -- is this person really involved? if not, what value are they? i think it would be difficult to

start trying to second guess that. >> what do we take away from the explosive devices themselves? you know, they've been described as crude and not sophisticated. but yet the ability to actually get them to go off to begin with and have multiple ones is not an insignificant thing. so what does that tell you about who is responsible when you figure out how coordinated was this, how sophisticated and whether it was a domestic or foreign attack. >> well, i think the sophistication and the device is apindication when they mention crude as opposed to highly sophisticated, it just means there's a wider population out there that can make them with little training, they couldn't have to go to terrorism school 101 to learn how to make a bomb like that. i was an assistant commander at the olympics in '96 in atlanta, and this device almost sounded

like that, where you have a crude homemade pipe bomb in a knapsack and plastic food containers with roofing nails the placed inside, so when the bomb exploded, it sent the nails airborne as shrapnel. one struck a woman and killed her at the venue. so these type of devices, a lot of people can make them. they're not hard. if it's a standard black powder pipe bomb type device, there's just thousands of people that know how to do it or could figure it out easily, as opposed to a more sophisticated device. >> tom, don, thanks to both of you. for those of you just joining us now, here's the latest that we know about the deadly terror attack in boston. right now, still three people confirmed dead, one an 8-year-old boy. 144 at least have been injured. many of them with shrapnel

wounds and experts tell us that number could be significantly higher, with people who perhaps have head injuries and are not aware of it at this point. 17 of those 144 are in critical condition. 25 serious. at least 8 of them are children. the fbi is formally leading the investigation tonight and federal law enforcement has been placed on a level one mobilization in the united states, which means all hands on deck. the first explosion went off around 2:50 eastern time. again, i want to play for you the video that has to aptly captured that moment throughout the day. [ explosion ] [ second explosion ] >> the second explosion, as you heard, went off 12 seconds after

the first one. many nearby were severely injured. runners were knocked off their feet. it depended on where you were relative to that wave that came out. authorities are now searching the city for answers. so far there have been no suspects identified. but law enforcement source tells us there are a number of active leads of people that they are talking to. chris cuomo is in boston. we'll be going back to him in a few moments. but the president came out this afternoon, or early evening, around 6:10 eastern and came out and talked to the country. he was briefed on the bombings in boston this afternoon and got a full briefing on what had happened. the president then met with his national security adviser and spoke on the phone with the director of the fbi. his homeland security adviser and chief of staff were also there. he also spoke with janet napolitano. the president vowed that those responsible will be found and held accountable.

we still do not know who did this or why. and people shouldn't jump to conclusions before we have all the facts. make no mistake, we'll get to the bottom of this and we'll find out who did this. we'll find out why they did this. any responsible individuals, any responsible groups will feel the full weight of justice. today is a holiday in massachusetts. patriots day. it's a day that celebrates the free and fiercely independent spirit that this great american city of boston has reflected from the earliest days of our nation. and it's a day that draws the world to boston's streets in a spirit of friendly competition. boston is a tough and resilient town and so are the people. i'm confident that they will put together, take care of each other and move forward as one proud city and as they do, the american people will be with them every single step of the

way. >> jessica yellin is at the white house. the one thing we did not hear from the president was the word "terror." but this seems to be a terror event. what is the white house telling you why he chose not to say that formally? >> the president is being careful. i've been in touch with officials throughout the night. it's their position that what happened in boston is an act of terror. but they don't yet know who carried out the attack and an investigation will have to determine whether it was planned and carried out by a terrorist group, foreign or domestic. now, clearly given that phrasing, the president avoided the word terror out of an abundance of caution and avoiding a rush to judgment or anything that could taint this investigation at its earliest stages. as you know, this is at its earliest stages. the president has directed his attorney general to make the full resources of the department of justice available.

the fbi is taking the lead on this investigation, but the atf is helping as well, along with the department of homeland security. we know that attorney general holder had a conversation with the u.s. attorney in massachusetts telling them they should make whatever resources available necessary. i imagine you can expect in the next few days the president's schedule will change. no doubt he'll get many briefings, perhaps additional cabinet meetings. i wouldn't be surprised if we see him go to boston to pay his respects. >> jessica, thank you very much. let's get back to chris cuomo now in boston tonight. >> we're with chris collins, who was way too close to the action today. we're just before the 4:10 mark of the marathon. you were telling me that's about the busiest time when people are finishing. >> no question about that. most of your lead runners are done well before that. so this is the point where family, friends, loved ones come

to root on their loved ones. they were raising hundreds of thousands, millions of dollars during this marathon. so at first, we heard the first blast. it was nothing that alarmed the people where i was, which was at a restaurant. the doors are open, there's a huge patio. it's packed. the first blast, you're thinking maybe it's a car backfiring or an m-80, some type of fireworks. maybe somebody hit the building but you're not thinking explosion. it was further up the road, and it wasn't that big of a blast to where we were standing. >> but 12 seconds later. >> everything changed. that second blast was amazing. i mean, it was nothing you've ever felt before. i've never been near big like that. it rocked the whole building. once that happened, in the building, it wasn't chaotic.

but everyone made a steady stream through the kitchen, out the back door and into the street. that's where you saw the mayhem. people with torn clothing, injured, crying, screaming. people just wondering what the heck just happened. and at that point, everybody from the restaurant was going away where the first responders, that's when you saw the ambulances, the fire engines, the police rushing the other way, kind of reminiscent of 9/11. that's what i was thinking and feeling, as everybody returned towards the scene, was on their cell phones calling loved ones, i'm okay. calling people to see are you out of there? i had a bunch of friends i came to the party with, and we were all split up. >> and you were worried about

what would happen next. >> when you're dealing with not one but two explosions, you don't know where that next bomb is going to drop. so you're running scared. because you just don't know. listen, you've got to understand boston. the boston marathon is part of the fabric of this city. it is a celebration. patriots day, the red sox play early, the crowd spills out and greet all the runners. it's part of who we are here in boston. so for someone to come and disrupt this day, it's horrific. it's sad. it's sickening. >> and they knew where to go, because that's like times square for you guys when this marathon is finishing, and when to go, because that's the thickest point of the marathon finish. >> yeah, for someone trying to do bad, they knew exactly what they were doing. it was no question about it, the busiest time of the day down here. other times of the day --

>> worst place, worst time. >> everyone knows the route. if you're from here, at different times, different areas of that route are very busy. at that time, that was the busiest time of the day for that. >> two things. when you saw the type of injuries and the number of injured, were you thinking the death toll is going to be much higher? >> i've said it all day today, i thought considering the lives that were lost and the injuries, i think it could have been much worse. it could have been in the hundreds, the thousands. understand, they found other explosive devices that could have been detonated. had those gone off, and we're talking hundreds and thousands of people. i think we dodged a bullet. we got very, very lucky here. >> is it true that a lot of people, once they realized there wasn't another bomb, a lot of people turned back, a lot of people helping each other. a lot of people becoming family in an instant. >> i saw a lot of that.

it goes towards the whole patriots day, patriotism. boston is a gritty, tough city. and it is all about politics and sport. and this community, they will come together. they did come together. doesn't surprise me that that happened, once people understood the explosions were over. there were a lot of things out there that you should have been proud of if you were out here today. it was a scary scene, but it was one one that you remember for a long time. it warms your heart. >> i'm sorry i had to meet you this way, but happy you're all right. thank you. i appreciate it. i though what you saw today is rough. hopefully the worst is behind us. with these situations, it doesn't matter where or what it is, the horrible acts are always followed by acts of greatness by people who can help out. we saw it here. we're hearing story after storiy. the nurses who did the triage. people like chris turning around

figuring out who they could help. sure, maybe it could have been worse, but the people here did what they had to do to keep the damage down when the moment called for it. >> all right. thanks, chris. i want to bring in jason carr l carroll. i know we heard from one of the surgeons earlier tonight who said there could be many more operations for some of the people there fighting for their lives tonight. >> just to clear things up, we're at brigham women's hospital. there are 31 patients here at this time. we spoke to dr. ron walls. he talked about the extent of the injuries they're dealing with. also spoke to a nurse who came outside and said it's been a very emotionally trying day for them. another said at one point the ambulances in the very beginning were coming in droves, erin. six at a time he said. dr. walls describing the injuries. mostly to the lower extremities. he also talked about the s

shrapnel type injuries. he was trying to clear things up there. once again, even all the training he said most of these doctors and nurses had gone through, nothing experienced them for what they had to deal with tonight. talk more about the patients who are here, nine patients immediately put into surgery, two in critical. those two patients are very close to losing their limbs. two again in critical condition. the youngest patient that was here for a short time, a 3-year-old. that patient was transferred to another hospital. what was apparent here is the amount of shock and how some people are stunned. the people here are in work mode. they're used to this in some ways. even as they're coming out, you can see the looks on their faces. they're tired, worn, they're emotional. what they're focused on now is saving the patients that are

here. i also want to point out, they are in a heightened state of alert. no longer on lockdown. there are members of the s.w.a.t. team, members of the fbi, as well. the hospital telling me they are doing that out of an abundance of caution. >> when you talk about the desperate need of treatment that these people have, and some of them fighting for their lives tonight, we've been under the impression we're going to know tomorrow if they were able to fight through and make it. is that what you're hearing, that the next few hours will be the most crucial for those clinging to life? >> absolutely, without question. the way the doctors describe it, there will going to be multiple surgeries. for some of the most critically injured patients, it's not just a matter of hours, but it could be a matter of minutes.

by tomorrow, one of the doctors saying the numbers are going to change. most likely again. but that does not mean that these nurses and doctors are working. every single hour to save the patients that are here. >> jason, thank you very much. reporting from bringham women's hospital. fear of copy cat incidents rippled across the country today. joe johns has been talking about his law enforcement sources. joe, what have you been learning about what other cities are doing specifically in response to today's bombings? >> obviously, as you said, boston is taking the lead, erin. the federal response has been enormous. the fbi, which takes the lead role in terrorism investigations, flooding that city with an enormous presence, dealing with an enormous crime scene. then we have the bureau of alcohol, tobacco and firearms sending in every available

person. they've activated their national response team. canine handlers and so on. most everyone we've spoken with, as you said, at first glance didn't think these devices were very sophisticated, but were very powerful. investigators are trying to figure out what they can find from the arc of the explosion, the agent used in the explosion. whether it was homegrown or international terrorism. but across the country, these explosions in boston usualered in a cold wind. a bunch of cities taking precautions. new york city beefing up security. police in washington, d.c., as well. probably the thing everybody tay paying attention to most, mass transit, subways, air traffic. san francisco, even seattle, and

about as tight as it can get in boston right now, erin. >> joe, i'm just looking at the latest information that we're getting. they talk about the bombs weren't sophisticated. the fbi saying this is something a lot of people could have figured out how to do. this suspect some complex creation, that they were ball bearings, zippers and blades inside of this. does that make law enforcement more afraid, that someone was able to kill this many people and get this far with apparently from what we understand no warning? >> right. it's a very disturbing thing, because remember, there was an element of coordination in that there was one explosive going off and just a few seconds later, another explosive going off. when we say we don't think at this time it was very sophisticated, that means plastic explosives wasn't involved, more like black powder

perhaps. it just shows how many people can figure out how to make a simple explosive device that can have a lot of power and can injure a lot of people. so that's the preliminary assessment. down the road, we'll know for sure just what these bombs were made of. >> as far as your understanding, joe, i know they're going down every single avenue, questioning people that are of interest to them. no one taken into custody at this point. do they have too much information as some former fbi agents were saying, because there's so many tens of thousands of calls were happening, that sifting through is it is difficult? or are they hoping in now more specifically than we might think and be closer to making an announcement? >> it's still sort of a needle in a hey stack. you think of the crime scene, it's just enormous. more than 100 people who were

actual victims. then questions of how many people were witnesses, just standing around. did they see anything. then you have to look at all the different security cameras in the area. and at a marathon like this, you even have people who go down and work for companies. they have cameras and they take individual pictures of each runner. what might have been caught in those photographs while these people were having their pictures taken? so there's a lot of work these fbi agents and others have to do before you can start saying you're sifting down and difficulting throu isifrting through to get the things you need. >> law enforcement officials are telling us they're going through all of the chatter that would have happened before this to see if they missed something just to make sure. next, more of our breaking news coverage from boston. we'll talk to a witness who was trying to run away from the scene but couldn't. we'll be right back.

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right now, we're up here in boston. there is a massive investigation going on. it's involving federal officials from many different agencies. boston's finest are still on the street in 12-hour shifts, blocking off a six-block perimeter around the blast zone that took place at the boston marathon. we know for sure two bombs were detonated. they're still sweeping the area, looking for packages. well over 100 injured, many of those injures very, very serious. three people have lost their lives. thoughts and prayers are going out in hopes that the injured make it through and continue on with their lives. at the same time this investigation is going on, people all over this area are trying to figure out what happened today. the marathoners, friends, families. kalen goes to school here. you were watching the marathon

today, a couple of blocks away. you were waiting for your friend? >> yes. >> what did you think was supposed to be happening? >> i was standing there with some of my friends and her family, and we were waiting to see her come by in about ten minutes. and then all of a sudden there was just a big blast. we kind of panicked and tried to get out of there as fast as possible. >> what did you think it was at first? >> i honestly thought at first it might have been celebratory fireworks. but that didn't seem right. because nothing was over yet. >> the reason i ask is because it's the function of how you decided to respond. >> yeah. >> you were looking around and saw smoke. what did you think? >> i knew it wasn't a planned event. so we -- you know, fight or flight kicked in and we just tried to get out of there and get as far away as possible as we could.

>> what happened when you tried to leave? >> we got out of the way and went up to kind of where the prudential food without is, and everyone was running out of the buildings. they kind of paused there for a little bit, just kind of regroup and figure out how are we going to get out of here. we went over to huntington from there. >> the marathon is all about trying to get close to it. >> yeah, yeah. >> you found your way out of there obviously. what were people saying? >> it was panic. everyone was scared. no one knew what was going on. the police, you know, looking at a police officer trying to figure out where to go, and they looked kind of scared and they didn't know what was going on. it was pretty terrifying. and everyone was just trying to

move and trying to get to safety, whatever that meant at that point. >> your friend was one of the 4,500 or so held at mile 25. you got in touch with her, she's okay? >> she's okay, yeah, yeah. >> was she aware of what happened? >> it took her a little while to figure out. she thought there might have been too many people. but she was informed of the explosion. >> as some time has gone on, what goes through your head and heart when you think about what happened today? >> i'm really thankful to be safe and that my friends are safe. but at the same time, you know, growing up here, this is my city, and i'm really saddened for the families that are unsure of what's going on tonight and whose loved ones have been hurt. >> your head is in the right place. a pleasure to meet you. so happy you made it out of there. good luck in school and carrying on with your life. >> thank you.

>> back to you, erin. >> what people saw and went through, these people coming to run the marathon. i talked to one family from south carolina who had come with their young daughters to run this race. the mother had been running on the side where she would have been affected by the blast but switched over to the other side to wave to her family. so many stories of people who came so close and there are people tonight who are no longer with us, and who are fighting for their lives in boston hospitals. again, the latest that we know is three people have been confirmed dead. tomorrow morning, we can all hope and pray that those who are in critical care, 17 of them, will have made it through and be moving on to the next stage of their long recovery. we'll have a press conference tomorrow morning to get the latest on the leads that law enforcement is pursuing. we want to give you the very latest we have. we understand there are several leads that the fbi is pursuing. but right now there is no one who is a formal suspect or who

is in custody. the nation and world will be watching to see if that changes tomorrow. thanks for watching. our team coverage of the boston marathon continues next with "piers morgan tonight." he'll be back right after this. . but when i started losing energy and became moody... that's when i had an honest conversation with my doctor. we discussed all the symptoms... then he gave me some blood tests. showed it was low t. that's it. it was a number -- not just me. [ male announcer ] today, men with low t have androgel 1.62% (testosterone gel). the #1 prescribed topical testosterone replacement therapy, increases testosterone when used daily. women and children should avoid contact with application sites. discontinue androgel and call your doctor if you see unexpected signs of early puberty in a child, or signs in a woman, which may include changes in body hair or a large increase in acne, possibly due to accidental exposure. men with breast cancer or who have or might have prostate cancer, and women who are or may become pregnant or are breastfeeding,

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